公开(公告)号：US11738887B2

公开(公告)日：2023-08-29

申请号：US17118265

申请日：2020-12-10

Applicant: Bell Textron Inc.

Inventor： Steve Cates ,  Caydn White ,  Kevin Brooker

IPC: B64F5/60 ,  B64C27/00 ,  G01N23/207

CPC classification number: B64F5/60 ,  B64C27/006 ,  G01N23/207 ,  G01N2223/056 ,  G01N2223/607 ,  G01N2223/632 ,  G01N2223/646

Abstract: A method of evaluating fatigue damage of a rotor mast. The method includes performing an x-ray diffraction (“XRD”) inspection of the rotor mast, assessing fatigue damage sustained by the rotor mast based on results of the XRD inspection, and determining whether the rotor mast is suitable for continued use based on the assessed fatigue damage.